content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -----------------
   * LogAxisTests.java
   * -----------------
   * (C) Copyright 2007-2012, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 11-Jul-2007 : Version 1 (DG);
   * 08-Apr-2008 : Fixed incorrect testEquals() method (DG);
   * 28-Oct-2011 : Added test for endless loop, # 3429707 (MH);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   * 
   */
  
  package org.jfree.chart.axis;
  
  import org.jfree.chart.ChartFactory;
  import org.jfree.chart.JFreeChart;
  import org.jfree.chart.plot.CategoryPlot;
  import org.jfree.chart.plot.XYPlot;
  import org.jfree.chart.ui.RectangleEdge;
  import org.jfree.data.category.DefaultCategoryDataset;
  import org.jfree.data.xy.XYSeries;
  import org.jfree.data.xy.XYSeriesCollection;
  import org.junit.Test;
  
  import java.awt.Graphics2D;
  import java.awt.geom.Rectangle2D;
  import java.awt.image.BufferedImage;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Tests for the {@link LogAxis} class.
   */
  public class LogAxisTest  {
  
  
  
  
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          LogAxis a1 = new LogAxis("Test");
          LogAxis a2 = (LogAxis) a1.clone();
  
          assertNotSame(a1, a2);
          assertSame(a1.getClass(), a2.getClass());
          assertEquals(a1, a2);
      }
  
      /**
       * Confirm that the equals method can distinguish all the required fields.
       */
      @Test
      public void testEquals() {
          LogAxis a1 = new LogAxis("Test");
          LogAxis a2 = new LogAxis("Test");
          assertEquals(a1, a2);
  
          a1.setBase(2.0);
          assertFalse(a1.equals(a2));
          a2.setBase(2.0);
          assertEquals(a1, a2);
  
          a1.setSmallestValue(0.1);
          assertFalse(a1.equals(a2));
          a2.setSmallestValue(0.1);
          assertEquals(a1, a2);
  
          a1.setMinorTickCount(8);
          assertFalse(a1.equals(a2));
          a2.setMinorTickCount(8);
          assertEquals(a1, a2);
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashCode() {
          LogAxis a1 = new LogAxis("Test");
          LogAxis a2 = new LogAxis("Test");
          assertEquals(a1, a2);
          int h1 = a1.hashCode();
          int h2 = a2.hashCode();
          assertEquals(h1, h2);
      }
  
      private static final double EPSILON = 0.0000001;
  
      /**
       * Test the translation of Java2D values to data values.
       */
      @Test
      public void testTranslateJava2DToValue() {
          LogAxis axis = new LogAxis();
          axis.setRange(50.0, 100.0);
          Rectangle2D dataArea = new Rectangle2D.Double(10.0, 50.0, 400.0, 300.0);
          double y1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
          assertEquals(94.3874312681693, y1, EPSILON);
          double y2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
          assertEquals(94.3874312681693, y2, EPSILON);
          double x1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
          assertEquals(55.961246381405, x1, EPSILON);
          double x2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
          assertEquals(55.961246381405, x2, EPSILON);
          axis.setInverted(true);
          double y3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
          assertEquals(52.9731547179647, y3, EPSILON);
          double y4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
          assertEquals(52.9731547179647, y4, EPSILON);
          double x3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
          assertEquals(89.3475453695651, x3, EPSILON);
          double x4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
          assertEquals(89.3475453695651, x4, EPSILON);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
  
          LogAxis a1 = new LogAxis("Test Axis");
  
          ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          ObjectOutput out = new ObjectOutputStream(buffer);
          out.writeObject(a1);
          out.close();
  
          ObjectInput in = new ObjectInputStream(
                  new ByteArrayInputStream(buffer.toByteArray()));
          LogAxis a2 = (LogAxis) in.readObject();
          in.close();
          assertEquals(a1, a2);
  
      }
  
      /**
       * A simple test for the auto-range calculation looking at a
       * LogAxis used as the range axis for a CategoryPlot.
       */
      @Test
      public void testAutoRange1() {
          DefaultCategoryDataset dataset = new DefaultCategoryDataset();
          dataset.setValue(100.0, "Row 1", "Column 1");
          dataset.setValue(200.0, "Row 1", "Column 2");
          JFreeChart chart = ChartFactory.createBarChart("Test", "Categories",
                  "Value", dataset);
          CategoryPlot plot = (CategoryPlot) chart.getPlot();
          LogAxis axis = new LogAxis("Log(Y)");
          plot.setRangeAxis(axis);
          assertEquals(0.0, axis.getLowerBound(), EPSILON);
          assertEquals(2.6066426411261268E7, axis.getUpperBound(), EPSILON);
      }
  
      /**
       * A simple test for the auto-range calculation looking at a
       * NumberAxis used as the range axis for a CategoryPlot.  In this
       * case, the original dataset is replaced with a new dataset.
       */
      @Test
      public void testAutoRange3() {
          DefaultCategoryDataset dataset = new DefaultCategoryDataset();
          dataset.setValue(100.0, "Row 1", "Column 1");
          dataset.setValue(200.0, "Row 1", "Column 2");
          JFreeChart chart = ChartFactory.createLineChart("Test", "Categories",
                  "Value", dataset);
          CategoryPlot plot = (CategoryPlot) chart.getPlot();
          LogAxis axis = new LogAxis("Log(Y)");
          plot.setRangeAxis(axis);
          assertEquals(96.59363289248458, axis.getLowerBound(), EPSILON);
          assertEquals(207.0529847682752, axis.getUpperBound(), EPSILON);
  
          // now replacing the dataset should update the axis range...
          DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
          dataset2.setValue(900.0, "Row 1", "Column 1");
          dataset2.setValue(1000.0, "Row 1", "Column 2");
          plot.setDataset(dataset2);
          assertEquals(895.2712433374774, axis.getLowerBound(), EPSILON);
          assertEquals(1005.2819262292991, axis.getUpperBound(), EPSILON);
      }
  
      /**
       * Checks that the auto-range for the domain axis on an XYPlot is
       * working as expected.
       */
      @Test
      public void testXYAutoRange1() {
          XYSeries series = new XYSeries("Series 1");
          series.add(1.0, 1.0);
          series.add(2.0, 2.0);
          series.add(3.0, 3.0);
          XYSeriesCollection dataset = new XYSeriesCollection();
          dataset.addSeries(series);
          JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
                  dataset);
          XYPlot plot = (XYPlot) chart.getPlot();
          LogAxis axis = new LogAxis("Log(Y)");
          plot.setRangeAxis(axis);
          assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
          assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
      }
  
      /**
       * Checks that the auto-range for the range axis on an XYPlot is
       * working as expected.
       */
      @Test
      public void testXYAutoRange2() {
          XYSeries series = new XYSeries("Series 1");
          series.add(1.0, 1.0);
          series.add(2.0, 2.0);
          series.add(3.0, 3.0);
          XYSeriesCollection dataset = new XYSeriesCollection();
          dataset.addSeries(series);
          JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
                  dataset);
          XYPlot plot = (XYPlot) chart.getPlot();
          LogAxis axis = new LogAxis("Log(Y)");
          plot.setRangeAxis(axis);
          assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
          assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
      }
  
      /**
       * Some checks for the setLowerBound() method.
       */
      @Test
      public void testSetLowerBound() {
          LogAxis axis = new LogAxis("X");
          axis.setRange(0.0, 10.0);
          axis.setLowerBound(5.0);
          assertEquals(5.0, axis.getLowerBound(), EPSILON);
          axis.setLowerBound(10.0);
          assertEquals(10.0, axis.getLowerBound(), EPSILON);
          assertEquals(11.0, axis.getUpperBound(), EPSILON);
      }
  
      /**
       * Checks the default value for the tickMarksVisible flag.
       */
      @Test
      public void testTickMarksVisibleDefault() {
          LogAxis axis = new LogAxis("Log Axis");
          assertTrue(axis.isTickMarksVisible());
      }
      
      /**
       * Checks that a TickUnit with a size of 0 doesn't crash.
       */
      @Test
      public void testrefreshTicksWithZeroTickUnit() {
          LogAxis axis = new LogAxis();
          AxisState state = new AxisState();
          BufferedImage image = new BufferedImage(200, 100,
                  BufferedImage.TYPE_INT_ARGB);
          Graphics2D g2 = image.createGraphics();
          Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, 200, 100);
          axis.refreshTicks(g2, state, area, RectangleEdge.TOP);
      }
  }
  